Make frequent small releases

The
development team needs to release iterative versions of the system to
the customers often. Some teams deploy new software into production
every day. At the very least you will want to get new software
into production every week or two. At the end of every iteration you
will have tested, working, production ready software to demonstrate to
your customers. The decision to put it into production is theirs.The
release
planning meeting is used to plan small units of
functionality that make good business sense and can be released into
the customer's environment early in the project. This is critical to
getting valuable feedback in time to have an impact on the system's
development. The longer you wait to introduce an important feature to
the system's users the less time you will have to fix it.